agent: A factor, such as a microorganism, chemical substance, or form of radiation, whose presence, excessive presence, or (in deficiency diseases) relative absence is essential for the occurrence of a disease. age-specific mortality rate: A mortality rate limited to a particular age group. The numerator is the number of deaths in that age group; the denominator is the number of persons in that age group in the population.
Sleeping Pills and Memory Loss. Elderly people have more trouble sleeping than younger folks. Some causes include waking to urinate, pain due to arthritis or other inflammations and lack of exercise. Sleeping pills can help, but they have a dark side. They can cause memory loss.
Again, there are many causes for short-term memory loss; the most common causes being stressful lifestyle, lack of sleep, anxiety, and depression. The chance that you have Alzheimer's disease in your 40s and 50s is extremely low. My advice to you is forget about Alzheimer's..